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Test Code URCA (timed), RCA (random) Calcium, urine

Specimen Type

Urine, timed (24 hour) or random collection

Container

Urine, random or timed 24 hour

Preferred Volume

4 mL

Offsite Collection Instructions

Collect without additives. Indicate start date/time and end date/time of 24 hour collection.

For timed specimens, send 10 mL of a well mixed sample. Indicate start and end time and total volume.

If collection duration is not specified, specimen will be considered a random sample.
 

UCMC Collection Instructions

Collect without additives. Sample may be random or timed collection.

If collection duration is not specified, specimen will be considered a random sample.

Availability

Random specimen: Sunday through Saturday 24/7

Timed specimen: Monday through Friday, 7:00 a.m. to 3:00 p.m.

Turnaround Time

Random specimen: 4 hours

Timed specimen: 24 – 72 hours

STAT Availability

Not Available

Test Methodology

Spectrophotometric endpoint

CPT Code

URCA: 82340

RCA: 82340

Test Includes

Quantitative determination of total calcium in urine

Reference Range

Timed: 10 – 300 mg/24 hr
Random: Reference ranges for random urine specimens have not been established; subject to ordering physician interpretation only.

Critical Results

None

Test Limitations

Drugs containing strontium salts may lead to significantly increased calcium results.

Minimum Volume

2 mL

Fee Code

URCA: 43413

RCA: 43413